8691045 has 16 divisors (see below), whose sum is σ = 15170112. Its totient is φ = 4213760.

The previous prime is 8691043. The next prime is 8691091. The reversal of 8691045 is 5401968.

It is not a de Polignac number, because 8691045 - 2¹ = 8691043 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 8690997 and 8691015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8691043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26172 + ... + 26501.

It is an arithmetic number, because the mean of its divisors is an integer number (948132).

Almost surely, 2^8691045 is an apocalyptic number.

It is an amenable number.

8691045 is a deficient number, since it is larger than the sum of its proper divisors (6479067).

8691045 is a wasteful number, since it uses less digits than its factorization.

8691045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52692.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 8691045 is about 2948.0578352536. The cubic root of 8691045 is about 205.6004209619.

The spelling of 8691045 in words is "eight million, six hundred ninety-one thousand, forty-five".